Plowshare for grubbing-plows, &amp;c.



0.1).JAUER. PLOWSHARE FOR GRUBBING FLOWS APPLICATION FILED NOV. 10,1909.

Patented May 3, 1910.

2 SHEETS-SHEET 1.

ANDREW B GRANAM 00.. PHOTO-LITKOGRAFHERS WASHINGTON 0.1:v

G. D. JAUER.

PLOWSHARE FOR GEUBBING PLOWS, 6w. APPLIOATION FILED NOV. 10, 1909.

956,768. Patented May 3, 1910.

2 SHEETSSHEET 2.

GHRISTMAN' D. JAUER, OF KARNES CITY, TEXAS.

PLOWSI-IARE FOR GRUBIBING-PLOWS, 860.

Specification of Letters Patent.

Application filed November 10, 1909.

Patented May 3, 1910.

Serial No. 527,337.

T 0 all whom it may concern:

Be it known that I, CHRISTMAN D. J AUER, a citizen of the United States,residing at Karnes City, in the county of Karnes and State of Texas,have invented a new and useful Plowshare for Grubbing-Plows, &c., ofwhich the following is a specification.

The invention relates to a plowshare for grubbing and other plows.

The object of the present invention is to provide a plowshare for use ongrubbing and other plows, particularly in preparing land for cultivationafter the same has been cleared of timber, and capable of enabling theplow to cut and tear up the stumps.

With these and other objects in View, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings :Figure 1 is a perspective view of a grubbing plow,equipped with plowshares, constructed in accordance with this invention.Fig. 2 is an enlarged perspective view of one of the plowshares. Fig. 3is a reverse plan view of the same. Figs. 4 to 6 inclusive are detailsectional views, illustrating the construction of the plowshare. Fig. 7is a plan view of a portion of the plowshare. Fig. 8 is a perspectiveView of a plowshare, illustrating another form of the invention. Fig. 9is a side view of a portion of the plowshare shown in Fig. 8. Fig. 10 isan enlarged detail view of a portion of the plowshare, illustrating theconstruction of the upwardly extending blades.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

1 designates a plowshare consisting of a thin horizontal plate or bladeof tool steel, or other suitable material of approximately triangularshape, provided at the inner edge with a vertical attaching flange 2,which is secured between vertical plates 3 of a grubbing plow 4"-,described and claimed in my co-pending application, No. 477 ,266, filedFeb. 11, 1909. The grubbing plow is provided at each side with aplowshare 1, as described in the aforesaid application, and the outeredge of the share 1 extends forwardly and inwardly, being arranged at anacute angle to the side face of the plate 3. The said outer edge of theplowshare is equipped with horizontally disposed forwardly projectingcutting teeth 4, beveled at the upper and lower faces of the plowshareand forming a cutting edge, which is located at an intermediate pointbetween the planes of the upper and lower faces of the plowshare. Thecutting edge, which is disposed transversely of the plowsharesubstantially at right angles to the median line of the plow, is locatednear the center of the thickness of the metal, and it cuts the woodcentrally of the kerf or split portion and presses the severed fibers orportions of wood both upward and downward, producing an equal pressureon the cutting teeth and preventing the same from bending in eitherdirection or breaking. This arrangement increases the durability andefiiciency of the cutting teeth. Also the edges of the horizontalcutting teeth by being arranged approximately at rlght angles to themedian line of the plow 1ncreases the strength of the teeth as thelatter are not as pointed or tapered, as illustrated in the saidapplication.

The horizontal cutting teeth are arranged at regular intervals and theteeth at one side of the cutting plow are designed to be locateddirectly opposite the teeth at the other side of the plow, so that buttwo teeth at a time will enter the wood of a stump and thereby enablethe plow to be operated wlth comparatively little force, as explained inthe said application. The horizontal cutting teeth may be arranged anydistance apart, and they are provided wlth upwardly extending cuttingblades or flanges 5, located in rear of the cutting edges of the teethat the outer sides of the latter. The upwardly extending cutting bladesor flanges taper forwardly and have oppositely inclined side faces,forming upper cutting edges, which incline downwardly and for wardly tothe front edges of the cutting teeth. The said blades or flanges 5 aredisposed in parallelism with each other and with the plane of the medianline of the plow, and when the latter strikes the stump and penetratesthe same, the teeth of the plowshare will cut a horizontal kerf in thestump, while the upwardly extending blades,

which operate longitudinally of the grain, sever and pull out the fibersof the wood at the points out by the teeth, and the stump is therebytorn up and pulled to pieces.

The plow is designed to operate on stumps up to eight inches indiameter, and the distance between the horizontal cutting teeth and thesize of the upwardly extending cutting blades or flanges will be variedto suitthe character of the wood to be operated on.

In Figs. 8 and '9 is illustrated another form of the invention, theplowshare 6 being equipped at its outer edge with horizontal cuttingteeth 7 only, the upwardly extending cutting blades being omitted. Theplowshare 6 is otherwise constructed similar to that heretoforedescribed and consists of a thin forwardly tapered plate or blade. Thisform of plowshare is especially adapted for and will be found effectiveand advantageous in clearing land in which there are only small stumpsto be encountered.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. A plowshare of the class described consisting of a thin blade taperedforwardly and provided at its outer edge with teeth arranged to cut andtear up a stump.

2. A plowshare of the class described consisting of a thin forwardlytapered blade having a longitudinal attaching portion at its inner sideedge and provided at its outer side edge with teeth disposed at an acuteangle to the attaching portion and arranged to cut and tear up a stump.

3. A plowshare of the class described consisting of a thin horizontalforwardly tapered blade having an approximately vertical attachingflange at its inner side and provided at its outer side with teethdisposed at an acute angle to the said flange and arranged to cut andtear up a stump.

A. A plowshare of the class described consisting of a thin blade havingan angularly disposed edge provided at intervals with approximatelyhorizontal teeth beveled to form cutting edges.

5. A plowshare of the class described consisting of a thin blade havingan angularly disposed edge provided at intervals with approximatelyhorizontal teeth beveled at the upper and lower faces of the blade toform intermediate cutting edges.

6. A plowshare of the class described con sisting of a thin bladeprovided with approximately horizontal teeth arranged at intervals andbeveled at the upper and lower faces of the plowshare to form a cuttingedge located at an intermediate point between the planes of the saidupper and lower faces to equalize the pressure and to force the woodupwardly and downwardly.

7. A plowshare of the class described consisting of a thin blade havingan angularly disposed edge provided at intervals with approximatelyhorizontal teeth beveled at the upper and lower faces of the blade toform cutting edges disposed transversely of the plowshare and arrangedat an intermediate point between the upper and lower faces of theplowshare to force the wood both upwardly and downwardly, whereby anequal pressure on the teeth is produced.

8. A plowshare of the class described consisting of a thin horizontalblade tapered forwardly and having a vertical attaching flange at itsinner edge and provided at its outer edge with transversely disposedhorizontal cutting teeth arranged approximately at right angles to theattaching flange and beveled at their upper and lower faces.

'9. A plowshare of the class described provided at intervals withapproximately horizontal teeth and having upwardly extending blades.

10. A plowshare of the class described having an angularly disposed edgeprovided at intervals with approximately horizontal teeth and havingapproximately vertical blades adapted to sever the fibers of the wood atthe point out by the teeth.

11. A plowshare of the class described provided at intervals withapproximately horizontal teeth and having ap roximately vertical bladesdisposed in paral elism.

12. A plowshare of the class described having an angularly disposed edgeprovided at intervals with approximately horizontal teeth. and havingapproximately vertical blades extending upward in rear of the frontedges of the teeth.

13. A plowshare of the class described consisting of a horizontal platehaving an angularly disposed edge and provided at intervals withapproximately horizontal cutting teeth having transversely disposedcutting edges, said plowshare being also provided with upwardlyextending cutting blades located in rear of the cutting edges of theteeth and having upper cutting edges.

14. A plowshare of the class described consisting of a horizontal platehaving an angularly disposed edge and provided at intervals withapproximately horizontal cutting teeth having transversely disposedcutting edges, said plowshares being also provided with upwardlyextending cutting blades located in rear of the cutting edges of theteeth and having oppositely inclined side faces forming a top cuttingedge.

15. A plowshare of the class described consisting of a horizontal platehaving an angularly disposed edge and provided at intervals withapproximately horizontal cutting teeth having transversely disposedcutting edges, said plowshares being also provided with upwardlyextending cutting blades located in rear of the cutting edges of theteeth and having oppositely inclined side faces forming a top cuttingedge, the latter being inclined toward the cutting edge of the adjacenttooth.

16. A plow of the class described includ ing a horizontal pl-owsharehaving an angularly disposed edge and provided at intervals withapproximately horizontal teeth and having approximately vertical blades.

17. A plow of the class described including a horizontal plowsharehaving an angularly disposed edge and provided at intervals withapproximately horizontal teeth and having approximately vertical bladesthe blades being disposed in parallelism.

18. A- plow of the class described includl ing a horizontal plowsharehaving an angularly disposed edge and provided at 1ntervals withapproximately horizontal teeth and having approximately vertical bladesextending upward in rear of the front edge of the teeth and arranged inparallelism.

19. A plow of the class described including a plowshare having anangularly disposed edge provided at intervals with teeth and havingupwardly extending blades tapered forwardly and provided with uppercutting edges.

In testimony, that I claim the foregoing as my own, I have heretoaflixed my signature in the presence of two witnesses.

CHRISTMAN D. JAUER. lVitnesses J. 7. CLAYTON, V. H. BRINKOCTER.

